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Kernel: add basic support for environment variables

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exec functions will search files from PATH
This commit is contained in:
Bananymous
2023-06-05 21:53:37 +03:00
parent 290b81dedc
commit 55ea5c5488
5 changed files with 137 additions and 37 deletions
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8
kernel/include/kernel/Process.h
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@@ -27,7 +27,7 @@ namespace Kernel
public:
using entry_t = Thread::entry_t;
struct userspace_entry_t
struct userspace_info_t
{
uintptr_t entry { 0 };
int argc { 0 };
@@ -49,7 +49,7 @@ namespace Kernel
pid_t pid() const { return m_pid; }
static BAN::ErrorOr<LibELF::ELF*> load_elf_for_exec(BAN::StringView);
static BAN::ErrorOr<LibELF::ELF*> load_elf_for_exec(BAN::StringView file_path, const BAN::String& cwd, const BAN::Vector<BAN::StringView>& path_env);
BAN::ErrorOr<Process*> fork(uintptr_t rsp, uintptr_t rip);
BAN::ErrorOr<void> exec(BAN::StringView path, const char* const* argv, const char* const* envp);
@@ -87,7 +87,7 @@ namespace Kernel
PageTable& page_table() { return m_page_table ? *m_page_table : PageTable::kernel(); }
const userspace_entry_t& userspace_entry() const { return m_userspace_entry; }
const userspace_info_t& userspace_info() const { return m_userspace_info; }
private:
Process(pid_t);
@@ -132,7 +132,7 @@ namespace Kernel
BAN::Vector<BAN::UniqPtr<FixedWidthAllocator>> m_fixed_width_allocators;
BAN::UniqPtr<GeneralAllocator> m_general_allocator;
userspace_entry_t m_userspace_entry;
userspace_info_t m_userspace_info;
ExitStatus m_exit_status;
BAN::UniqPtr<PageTable> m_page_table;